Window-fastener.



C. W. LEINEN & H. G. RITTER.

WINDOW SASTBNER.V

APPLICATION I'ILEDMAY l?, 1911.

Patented Oct. 3, 1911.

@9H/neon@ coLUMBIA PLANOGRAPH CO..w^sH|NaTON, D. cV

UNITED STATES PATENT OFFICE.

CASPER W. LEINEN AND HERBERT G. RITTER, OF RACINE, WISCONSIN.

WINDOW-FASTENER.

Specicaton of Letters Patent.

Patented oct. s, 1911.

To all whom 'tt 'may concern.: A

Be it known that we, CASPER W. LEINEN and HERBERT G. RITTER, citizens of the United States, residing at Racine, in the county of Racine and State of Wisconsin, have invented new and useful Improvements in lfVindow-Fasteners, of which the following is a specification.

The invention relates to a window attachment, and more particularly to the class of sash fasteners.

The primary object of the invention is the provision of a fastener of this character in which the upper and lower sashes of a window may be partially opened but prevented from being wholly opened, thereby obviating the entrance to a dwelling house through the window when the sashes have been slightly opened.

Another object of the invention is the provision of a fastener in which the sashes, when partially opened, will be locked to prevent the intrusion of burglars or thieves, the device, when mounted in operative position, will be securely locked to one of the sashes, thus making it impossible to remove the same by a malicious person, and at the same time making it impossible for the window to be further opened to afford an entrance through the window.

A further object of the invention is the provision of a fastener which may be mounted securely upon one of the sashes of a window, so that it will be impossible to remove the same from the outside of such window, or the sashes may be moved to partially open position, thereby permitting the ventilation of a room, and at the same time preventing the suflicient opening of the sashes to permit the entrance of a burglar or thief through the window.

A still further object of the invention is the provision of a fastener of this character which is simple in construction, thoroughly reliable and efficient in its purpose, and inexpensive in manufacture.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended. V In the drawings: Figure 1 is a fragmentary vertical sectional view through a window, showing the upper and lower sashes partially opened, and the device mounted in operative position and constructed in accordance with the invention. Fig. 2 is an edge elevation of the device removed from the sashes. Fig. 3 is a top plan view thereof, showing the catch in released position. Fig. A is a side elevation thereof, the catch being inl released position.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings by numerals, 5 and 6 designate portions of upper and lower sashes, respectively, the same being here shown in partially opened position for the mounting of the sash fastener, as will be hereinafter more fully described.

The sash fastener comprises a substantially Z-shaped bar 7, preferably made from steel, although the same may be made from any other suitable material possessing the requisite strength, the bar 7 being formed with an upper inturned horizontal end 8, and a lower outturned horizontal end 9, and an intermediate curvature 10 which is preferably inclined to conform to the beveled sides of the meeting rails of the upper and lower sashes, the upper end 8 being provided with a iattened face 11 arranged to rest on the top of the meeting rail of the lower sash, so that the lower outturned horizontal end 9 will be disposed in the path of movement of the meeting rail of the upper sash 5, thereby preventing the opening of either the upper or lower sash to its fullest extent in the window. When the fastener is in this position, it will be seen that if an attempt is made to raise the lower sash or lower the upper sash, the outturned end 9 of the fastener will strike against the meeting rail of the upper sash and the full force of any effort to move either sash in the direction stated would be exerted against the ends 8 and 9 of the fastener, thus compelling an intruder to abandon the attempt of an entrance through the window.

Formed in the inturned horizontal end 8 of the fastener is a bifurcation providing spaced parallel ears 12, between which is swingingly connected a hook-like catch 13, the latter being supported by means of a pivot pin 14, which is ournaled in the said ears 12. The inner pivoted end of the catch 13 is formed with a notch 15, providing an abutment shoulder 16, the latter being adapted to engage a stop lug 17 formed on and depending from one of the ears 12 at right angles thereto, the space between the ears 12 being considerably greater than the width of the catch 13, so that the latter may be moved longitudinally on the pivot pin 14, thereby enabling the shoulder 16 to be brought into locking engagement with the lug 17 to sustain'the catch in a position for locking engagement with the meeting rail of the lower sash, thus preventing the possibility of the removal of the fastener from its engaging position with the lower sash, when such sashes are partially opened. Interposed between one side of the catch 13 andthe adjacent ear 12, and surrounding the pivot pin 14, is a coiled expansion spring 18, which automatically moves the catch 13, when in locking position, longitudinally upon the pin 14, whereby the said shoulder will lock with the lug 17, thus preventing the catch 13 from being swung to releasing position, until it has been shifted by a person at the inner side of the window. Formed on the catch 13 is a finger engaging I lip or nib 19 which permits the catch to be moved longitudinally upon the pivot pin 14, in a convenient manner against the resistance of the spring 18 acting thereon for the release of the catch, when it is desired to detach the fastener from the window sash.

To place the fastener into position between the sashes' and 6, the catch 13 is shifted to releasing position, and the said with the accompanying drawings, it is thought that the construction and operation 0f the invention will be readily understood, Without requiring a more extended explanation, and therefore the same has been omitted.

Vhat is claimed is:

1. A sash fastener comprising a bar engaging the upper surface of the top rail of the lower sash and the lower surface of the lower rail of the upper sash, a catch pivoted to t-he upper end of the bar for swinging movement into locking engagement with the top rail of the lower sash, a coperative lug and shoulder formed on the bar and catch, respectively, for locking engagement with each other to prevent the release of the catch from its locking engagement with the top rail of the lower sash, and means acting upon the catch to automatically move the same in position, whereby the shoulder will engage with the lug when the catch has been swung to position for locking engagement with the top rail of the lower sash.

2. A sash fastener comprising a bar bent into the shape of a Z, a hook-like catch swingingly connected to one end 0f said bar and adapted for locking engagement with the top rail of a lower sash, a shoulder formed on said catch, a lug formed on the bar and adapted for engagement with the shoulder to hold the catch against unlocking movement, and means acting upon the catch to automatically shift the shoulder into engagement with the lug.

In testimony whereof we affix oui` signatures in presence of two witnesses.

CASPER W. LEINEN. i HERBERT G. RITTER.

Witnesses:

C. N. WASHBURN, C. E. CHRISTENSEN.

Copies of this patent may be obtained for five centseach, by addressing the Commissioner of Patents, Washington, D. C. 

